ReactOS源码分析ReadFile函数分析

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已于 2024-09-21 23:59:00 修改 · 487 阅读

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#windows #单片机 #ReactOS

于 2024-09-21 23:57:03 首次发布

ReactOS源码分析ReadFile函数分析

ReactOS源码分析ReadFile函数分析
ReadFile(IN HANDLE hFile,
IN LPVOID lpBuffer,
IN DWORD nNumberOfBytesToRead,
OUT LPDWORD lpNumberOfBytesRead OPTIONAL,
IN LPOVERLAPPED lpOverlapped OPTIONAL)

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ReactOS源码分析ReadFile函数分析
ReadFile

ReadFile

BOOL WINAPI
ReadFile(IN HANDLE hFile,
         IN LPVOID lpBuffer,
         IN DWORD nNumberOfBytesToRead,
         OUT LPDWORD lpNumberOfBytesRead OPTIONAL,
         IN LPOVERLAPPED lpOverlapped OPTIONAL)
{
   
   
    NTSTATUS Status;

    TRACE("ReadFile(hFile %p)\n", hFile);

    if (lpNumberOfBytesRead != NULL) *lpNumberOfBytesRead = 0;

    hFile = TranslateStdHandle(hFile);

    if (IsConsoleHandle(hFile))
    {
   
   
        if (ReadConsoleA(hFile,
                         lpBuffer,
                         nNumberOfBytesToRead,
                         lpNumberOfBytesRead,
                         NULL))
        {
   
   
            DWORD dwMode;
            GetConsoleMode(hFile, &dwMode